A vulnerability in Cisco Meeting Server could allow an unauthenticated, remote attacker to gain unauthorized access to components of, or sensitive information in, an affected system.
The vulnerability is due to incorrect default configuration of the device, which can expose internal interfaces and ports on the external interface of the system. A successful exploit could allow the attacker to gain unauthenticated access to configuration and database files as well as sensitive meeting information on an affected system.
Additionally, if the Traversal Using Relay NAT (TURN) service is enabled and utilizing Transport Layer Security (TLS) connections, an attacker could utilize TURN credentials to forward traffic to device daemons, allowing for remote exploitation.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
This advisory is available at the following link:
Vulnerable ProductsThis vulnerability affects Cisco Meeting Server (CMS) Acano X-series platforms that are running a CMS Software release prior to 2.2.11.
Administrators can determine which CMS Software release is running on a device by using the version command in the CLI. The following example shows the output of the command for a device that is running CMS Software Release 2.2.11:
The following example shows the output of the turn command for a system that has TLS configured for the TURN server:
cms > turn
Enabled: true Username: cisco Password: 1234 Realm: nicedet.com Public IP: none Relay address: 18.104.22.168 TLS port: 3479 TLS cert: turn.crt TLS key: turn.key TLS bundle: none Listen interface a
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability.
Cisco Meeting Server (CMS) incorporates video, audio, and content-sharing capabilities into software that can be accessed via a conference room, desktop, or mobile device. CMS works across Cisco video rooms and connects with Skype for Business and other hardware providers to allow a seamless meeting architecture. This capability exists via collaboration between Cisco and Acano, who joined Cisco in early 2016.
There are no workarounds that address this vulnerability.
Cisco has released free software updates that address the vulnerability described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:
Additionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.
When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page, to determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.
Customers Without Service Contracts
Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC:
Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.
This vulnerability is fixed in CMS Software Releases 2.2.11 and later. Customers should upgrade to the latest software release by visiting the Software Center on Cisco.com and navigating to Products & Services > Collaboration > Cisco Meeting Server > Download Software > Acano X-series.
For information about the CMS software release model, refer to Cisco Meeting Server: End of maintenance and support policy.
The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
This vulnerability was found during internal security testing.
To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
Version Description Section Status Date 1.0 Initial public release. — Final 2018-May-02
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